Loose leaf binder



June 2, i1942. R. rAuaER 2,285,234

LoosE LEAF BINpEn l med May e. 1941 '2 sheets-sheet 1 Hlliliklil im fr "Il INVENTOR. uooL F 7211/55? ATTORNEY rJune 2, '1942. R. -r/WBER 2,285,234

LOOSE LEAF BINDER Filed May 6,y 1941 2 Sheets-Sheet 2 INVENTOR. RUDOLF 72H/BER LUM/um ATTORNEY.

Patented June 2, 1942 UNITED:

; l enfrEzN'rf OFFICE vLooslr LEAF BINDER. i

Rudolfl'l'auber, New; York, VN. Y.` Applicatiun Mays, 1941, serian No. 392,041 n 2 Claims.

This invention .relatesv y.to A theart of l. .bookbind-` ing, and` more particularly to meansior .fasteningA together,r a plurality of 4loose leaves, vfas-,sheets ofpaper-or similar ,thing-,ilat-...materiaL assembled l in. denite sequence,.this applicationbeing acontinuation, in apart, 1 .ot-l a,` former ,al p,1ication,l ifiled May 26, 1938, Serial No.1210y105...

Devices for binding;- ,-large;w books. incsuch manneras to Permit the addition,4 removal ,orsub,-

stitution or onenor-v more-fe pages, I,are often re quired, as ,in loose-lean.catalogues,l and` books of:

reference in Whichchanges ,f taker-,place Wi-th, the passage oftime,r andotherrexamp1es vWelLknown to the-publia More importantis Lthefdemand; for secure-.but` removable binding means for small collections ofL blank sheets, printed matter-fand thelike, such as note-books, calendars,display or counter cards, monthly publications;fpamphletssprice listss etc., on which coversfaretused:V A

The outstanding- `requirements of such binders may be ;briefly,enumerated` as, -follpyvsz` inexpen sive construction;y easeof-gapplicationp security in `clasping; y positive,nonginterferenceg in. turning4 pages,-which must besmoothly accomplished;r

iiat opening, that is, the leaves mustalieyfflatwhen extended, j and the-rbinders'vshould permit the-` pagesto beturnedfover, upon themselves, and still maintain-ftheiriiatvcondition; to these must beadded attractive and; pleasingY appear- It is the `object of-.this :invention-toprovide binding means thatincludaalhofthe.,foregoing features, together with othersfwhich will Vhereinafter appear.

In "thedrawingsaconstituting a component of Figure `1 isa plganjyview of a blank from which the binder. is formed. Y

Figure 2 is a perspective View of the binder as coiled and its ends interenga'ged.

Figure 3 is a plan view of a modified form of'blank with longitudinal grooves.

Figure 4 is a perspective view of the blank 4 coiled and its ends connected.

Figure 5 is another plan view of a blank having means .to prevent displacement.

Figure 6 is a perspective view of the blank with its ends interconnected.

Figure 7 is a top plan view of the binders. 1

Figure 8 is an end view of a loose leaf book, showing the arrangement of covers, pages and binder.

Figure 9 is a plan view of a blank from which binding devices may be formed Without wasteP strip formedby the blank.V

Figure 11 is, a side elevational View showing..

the application of the bindertoabook 5` Figure `12 is a View `similartoligure;A but showing interengageable V,binder blanks.

Figure 13 is -a pers,pecl'live.view` of. ,a `binder stripmade therefrom.`

l0,.further slightly modified` form.0f binder strip.

Figure .15. .Y isl a side ,elevationalyiew showing .Y

theA application of Y the binder. strip shownin Figure 13.. Figure 16 is aside Velev,ational view ofzpaired elementslapplie'd toa,book.. v

Fig-ure` 17 isa ,perspective view of a `single binder, its ends .securedbyan adhesive.,

`Referring, in further. detail `tothe drawings,k all ofthe several binder blanksare, cut from` 20 thin, flatsheets-.oi any preferred, resilient ma-` terial, such for instance, as Celluloid.

The. blank is. generallyan elongated rec.

tangle` having straight parallel side edges and. oblique ends 26, extending midway the Widthpf 25thestrip, thus produced, thence ,blendingl into arcuate extensions 29 `on,thepppOSi'e.Side ,edge

and constitutingn the 1 terminals y, of thefbinder,

blank..

The blank is shapedintogaqbandrby heat;` and compression in dies, ,itsterminal lobes..23A `engaging by lateral pressure. applied by the ngers Vj 3.5.0fan` operator withinjhe reci-isses` 21 when as,-

- sembling, theleaves of the booklet,r or dismounting, them inan` obvious,.mannen4 the ,material readily Vyieldinga andmthereater, due.to.its, v1e A siliency, returning. to- .the interlocked position m tending from one of their edges is a lug 33 adaptf ed to retain the engaged ends of the binder, On the Outer edges of the booklet, the lug 33 Figure 10 isV a perspective, view. Lof a binder.

Figure 14 is a perspective `View showingv af narrow, .reentrantlycurved `recesses 2l, partially'. enclosed byl lobes A28 extending, past the .longim tudinal center of the strip from outvllrdly^ curved.

preventing the joint from slipping into the slots made in the pages of the booklet to receive the binder. Y

If preferred, the engaging ends of the various forms shown and described, may be secured by an adhesive, or any suitable permanent sealing means, thus preventing removal of the binder rings from the perforations in the sheets, resulting in a permanently bound unit.

In Figure 8 is shown a booklet having a cover in two parts 40 and 40', the material being creased lengthwise, adjacent the rear edges, to admit of binding flaps 4|--4| turned inwardly to contact the pages 42 therebetween.

Each of the covers and increasing aps are provided with perforations 43-43' through which are passed, either the tubular binders hereinbefore described, or plain ring binders.

The effect produced is, by reason of a quadruple bearing of the binders, to prevent lengthwise movement of the pages relative to the cover, the binders at all times extending inwardly with far greater rigidity than when merely passing through the covers and pages only.

The blank shown in Figure 9 consists of a tapelike strip of, resilient non-metallic material, of uniform width and thickness, die stamped to produce opposed,.straight marginal backings 45 from which extend uniform arms 46, equally spaced and the spaces so proportioned as to form identical arms integral with the opposite backing.

The ends 41 of the arms are formed semi-circular and it is to be noted that no waste material results from the stamping operation,

After stamping, the ribs are curled, under heat and pressure, to` present tubular bands or rings 48, their curved end portions 49 again bent radially and adapted to be juxtaposed upon the backing 45, after being Ypassed through openings, as at 58, in the cover 5I of a book, thereafter to be aflixed to the backing, as will be Vclearly understood. These covers 5I may be. constructed in the same manner as the covers 40 and 40 shown in Fig. 8. Y

In Figure 17, a single band 52 is illustrated, having both'ends 53 arranged in parallel to be rmly secured together by an adhesive suited to the material used.

The blank seen in Figure 12 has similar marginal backings 55 from which extend arms 56 partially separated by short transverse slots 51 at the junction with the backings.

Opposite the slots 51, which enter the backings, are recesses 58, by which the rounded 'ends 60 are formed, and further shaped as hooks by reasonof notches 6I, the same being continuations of the recesses 58; thus the arms 56 are ing the arms laterally, thereby forming bands 62, as best seen in Figure 13.

Figures 14 and 15 vary from the foregoing in that the backing strip 65 may be curved arcuately; it has similar arms 66 extending fromone edge and on the opposed edge are hook formations 61 directly opposite the arms, these hooks being formed by recesses 68 adapted to engage the rounded ends 69 of the arms and held in position by end recesses 16 adapted to engage the hooks 61, when the arms are bent to constitute circular bands 1|.

Itis to be noted that in Figures 14 and 15, one or more of the arms 66, preferably at the end portions of the strips, have their hook shaped end portions 69 formed in a reverse direction to that of the remaining hooks 69, and obviously the corresponding slots or recesses 68 and 16' are also directed oppositely in accordance.

This arrangement prevents any possible accidental displacement of the bands, as their interengaging elements are oppositely disposed.

The showing in Figure 16 is merely to illustrate that two or more of the bands 62, connected by short strips 55', may be used when desired; obviously the arrangementl indicated in Figures 10 and 11 may be substituted.

It is highly important that band or ring binding devices, used in connection with a connecting strip, have their respective engaging elements as close as possible t0 the edge of the strip for convenience in attachment and detachment, it being found that if the joints of the bands are midway their lengths, difficulty is encountered, a condition avoided by having the joints as shown and described.

Although the improvements have been described with considerable detail and with respect formed in such manner that their curved hook lends 6U are engageable in the slots 51 by springto certain particular forms of the invention, it is not desired to be limited to such details since many changes and modications may well be made Without departing from the spirit and scope of the invention in its broadest aspect.

Havingrthus described the invention, what is claimed as new and desired to secure by Letters Patent is:

1. In combination with a book having a separate cover on each side, an inturned resilent ap formed at the rear edge of each side cover, said covers and flaps being plurally perforated, and binders passed through registering perforations in the covers, flaps and intervening material.

2. In combination with a book having a cover on each side, a reentrantly turned spaced ap at the rear edge of each cover, said covers and flaps being perforated, and loose-leaf binders set in registering perforations.

RUDOLF TAUBER. 

